Email server

Email with Postfix, Dovecot and MySQL
https://library.linode.com/email/postfix/postfix2.9.6-dovecot2.0.19-mysql



Testing Dovecot via command line
http://notes.sagredo.eu/node/90

Configure Squirrel mail
http://www.howtoforge.com/squirrelmail-configuration-easy-steps-squirrelmail-sendmail-apache-redhat-centos-fedora-p2

Problems that may happen:
(1)Look through the mail log files (/var/log/mail.log and /var/log/mail.err)
(2) LMTP: Local Mail Transport Protocol
(3)Make sure the LMTP service is set up properly

34. File excerpt:/etc/dovecot/conf.d/10-master.conf

service lmtp {
 unix_listener /var/spool/postfix/private/dovecot-lmtp {
   mode = 0600
   user = postfix
   group = postfix
  }
  # Create inet listener only if you can't use the above UNIX socket
  #inet_listener lmtp {
    # Avoid making LMTP visible for the entire internet
    #address =
    #port =
  #}
}